This video provides step-by-step instructions for replacing the blower wheel on Lennox furnaces. The most common reason for replacing the blower wheel is when the furnace is loud, and tightening or replacing the set screw on the wheel does not fix the problem.
All of the information in this blower wheel replacement video is applicable to the following brands: Lennox
Tools needed: 1/4 inch socket, adjustable wrench, 5/16 inch socket, 3/8 inch socket